yv01p
9962df50ee
Adds IContentCrudService registration to UmbracoBuilder alongside IContentService. Both services are now resolvable from DI. Includes integration test verifying successful resolution. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
81 lines
3.6 KiB
Markdown
81 lines
3.6 KiB
Markdown
---
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date: 2025-12-13T04:47:12+00:00
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researcher: Claude
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git_commit: 45edc5916b4e2e8e210c2fc9d9d3e6701d3ad218
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branch: refactor/Utf8ToAsciiConverter
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repository: Umbraco-CMS
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topic: "Utf8ToAsciiConverter Refactoring Analysis"
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tags: [analysis, refactoring, strings, simd, performance]
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status: complete
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last_updated: 2025-12-13
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last_updated_by: Claude
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type: analysis
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---
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# Handoff: Utf8ToAsciiConverter Refactoring Analysis
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## Task(s)
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**Completed:**
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1. Cyclomatic complexity comparison between original and refactored implementation
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2. Test count comparison before and after refactoring
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## Critical References
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- `src/Umbraco.Core/Strings/Utf8ToAsciiConverter.cs` - New SIMD-optimized implementation
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- `src/Umbraco.Core/Strings/Utf8ToAsciiConverterOriginal.cs` - Original implementation (disabled with `#if false`)
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- `tests/Umbraco.Tests.UnitTests/Umbraco.Core/Strings/TestData/golden-mappings.json` - 1,308 character mappings for regression testing
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## Recent changes
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No code changes made in this session - analysis only.
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## Learnings
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### Cyclomatic Complexity Reduction
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- **Original**: ~287 total complexity (dominated by ~280 in single switch statement with 276 case groups)
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- **New**: 25 total complexity (distributed across 4 focused methods)
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- **Reduction**: 91% overall, 97% for maximum method complexity
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### Architectural Changes
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1. **Switch Statement → Dictionary Lookup**: 3,400-line switch replaced by `FrozenDictionary<char, string>` loaded from JSON
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2. **Unicode Normalization**: ~180 case groups eliminated by using `NormalizationForm.FormD` for accented Latin characters
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3. **SIMD Fast Path**: Uses `SearchValues<char>` for vectorized ASCII detection
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4. **Separation of Concerns**: Logic split into `Convert()`, `ProcessNonAscii()`, `TryNormalize()`
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### Test Coverage Added
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- **Before**: 0 dedicated tests existed
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- **After**: 2,649 test cases across 4 test files
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- Golden file testing validates all 1,308 character mappings from original implementation
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## Artifacts
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Analysis results documented in conversation - no files created.
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Key files analyzed:
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- `src/Umbraco.Core/Strings/Utf8ToAsciiConverter.cs:1-209` - New implementation (~210 LOC)
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- `src/Umbraco.Core/Strings/Utf8ToAsciiConverterOriginal.cs:1-3633` - Original implementation (~3,600 LOC)
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- `tests/Umbraco.Tests.UnitTests/Umbraco.Core/Strings/Utf8ToAsciiConverterTests.cs` - 30 test cases
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- `tests/Umbraco.Tests.UnitTests/Umbraco.Core/Strings/Utf8ToAsciiConverterGoldenTests.cs` - 2,616 test cases
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- `tests/Umbraco.Tests.UnitTests/Umbraco.Core/Strings/Utf8ToAsciiConverterInterfaceTests.cs` - 2 tests
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- `tests/Umbraco.Tests.UnitTests/Umbraco.Core/Strings/Utf8ToAsciiConverterNormalizationCoverageTests.cs` - 1 analysis test
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## Action Items & Next Steps
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The refactoring analysis is complete. Potential follow-up:
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1. Review benchmark results in `docs/benchmarks/utf8-converter-final-2025-11-27.md`
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2. Consider merging branch to main if all tests pass
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3. Document normalization coverage findings from `Utf8ToAsciiConverterNormalizationCoverageTests`
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## Other Notes
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### Key Metrics Summary
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| Metric | Before | After | Change |
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|--------|--------|-------|--------|
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| Cyclomatic Complexity | ~287 | 25 | -91% |
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| Lines of Code | ~3,600 | ~210 | -94% |
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| Switch Cases | 276 | 0 | -100% |
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| Test Cases | 0 | 2,649 | +2,649 |
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### Branch Status
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The branch `refactor/Utf8ToAsciiConverter` contains 16 commits implementing the SIMD-optimized converter with:
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- Interface abstraction (`IUtf8ToAsciiConverter`)
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- DI integration via `ICharacterMappingLoader`
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- Static wrapper for backwards compatibility (`Utf8ToAsciiConverterStatic`)
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- Comprehensive test suite with golden file validation
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